Home / 428,496,278.28-591,331,343.08-240,366,275.16

Finding the Fourth Proportional to 428,496,278.28, 591,331,343.08 and 240,366,275.16

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Solution

The fourth proportional to 428,496,278.28, 591,331,343.08 and 240,366,275.16 is: 331,709,094.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,496,278.28 : 591,331,343.08 = 240,366,275.16 : x
  2. Step 2: Convert to fraction form
    428,496,278.28/591,331,343.08 = 240,366,275.16/x
  3. Step 3: Cross multiply
    428,496,278.28x = 591,331,343.08 × 240,366,275.16
  4. Step 4: Simplify right side
    428,496,278.28x = 142,136,112,321,499,648
  5. Step 5: Solve for x
    x = 142,136,112,321,499,648/428,496,278.28
  6. Step 6: Final answer
    x = 331,709,094.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.